/* =========================================================
   ROOT VARIABLES — DESIGN TOKENS
========================================================= */
:root {
  --bg: #F8FAFC;
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --accent: #06B6D4;
  --text-dark: #111827;
  --text-muted: #4B5563;
  --card-light: #FFFFFF;
  --card-gray: #F1F5F9;
  --border-soft: rgba(17, 24, 39, 0.08);

  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;

  --shadow-sm: 0 4px 14px rgba(17, 24, 39, 0.06);
  --shadow-md: 0 12px 32px rgba(37, 99, 235, 0.12);
  --shadow-lg: 0 20px 60px rgba(17, 24, 39, 0.10);

  --gradient-primary: linear-gradient(135deg, var(--primary), var(--accent));
  --gradient-soft: linear-gradient(135deg, rgba(37,99,235,0.08), rgba(6,182,212,0.08));

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;

  --section-pad: 120px;
  --transition: 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

/* =========================================================
   RESET & BASE
========================================================= */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text-dark);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

.section-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: var(--section-pad) 24px;
}

.section-kicker {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
  background: rgba(37, 99, 235, 0.08);
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  margin-bottom: 56px;
  letter-spacing: -0.01em;
}

/* =========================================================
   LOADING SCREEN
========================================================= */
.loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
.loader.hide { opacity: 0; visibility: hidden; }

.loader-mark {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: 0.05em;
}

.loader-bar {
  width: 160px;
  height: 4px;
  background: var(--border-soft);
  border-radius: 999px;
  overflow: hidden;
}
.loader-bar span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--gradient-primary);
  border-radius: 999px;
  animation: loaderFill 1.1s ease forwards;
}
@keyframes loaderFill { to { width: 100%; } }

/* =========================================================
   SCROLL PROGRESS BAR
========================================================= */
.scroll-progress {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 3px;
  z-index: 1001;
  background: transparent;
}
.scroll-progress span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--gradient-primary);
}

/* =========================================================
   NAVBAR
========================================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: var(--transition);
}
.navbar.scrolled {
  padding: 12px 0;
  background: rgba(248, 250, 252, 0.75);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border-soft);
}

.nav-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  color: var(--text-dark);
}
.logo-dot { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 8px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--border-soft);
  padding: 6px;
  border-radius: 999px;
  backdrop-filter: blur(10px);
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 999px;
  transition: var(--transition);
}
.nav-link:hover { color: var(--text-dark); background: rgba(37,99,235,0.06); }
.nav-link.active {
  color: #fff;
  background: var(--gradient-primary);
  box-shadow: var(--shadow-md);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-dark);
  border-radius: 2px;
  transition: var(--transition);
}

/* =========================================================
   HERO SECTION
========================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 24px 80px;
}

.hero-blobs { position: absolute; inset: 0; z-index: 0; filter: blur(0px); }
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.35;
  animation: floatBlob 14s ease-in-out infinite;
}
.blob-1 {
  width: 420px; height: 420px;
  background: var(--primary);
  top: -100px; left: -120px;
}
.blob-2 {
  width: 380px; height: 380px;
  background: var(--accent);
  bottom: -140px; right: -100px;
  animation-delay: -4s;
}
.blob-3 {
  width: 260px; height: 260px;
  background: #93C5FD;
  top: 40%; left: 60%;
  animation-delay: -8s;
}
@keyframes floatBlob {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -30px) scale(1.08); }
}

.hero-shapes { position: absolute; inset: 0; z-index: 0; }
.shape {
  position: absolute;
  border: 2px solid rgba(37, 99, 235, 0.18);
  animation: floatShape 8s ease-in-out infinite;
}
.shape-1 { width: 60px; height: 60px; border-radius: 16px; top: 18%; left: 8%; animation-delay: 0s; }
.shape-2 { width: 36px; height: 36px; border-radius: 50%; top: 65%; left: 14%; animation-delay: -2s; border-color: rgba(6,182,212,0.25); }
.shape-3 { width: 44px; height: 44px; border-radius: 12px; top: 24%; right: 12%; animation-delay: -4s; }
.shape-4 { width: 26px; height: 26px; border-radius: 50%; top: 72%; right: 20%; animation-delay: -6s; border-color: rgba(6,182,212,0.25); }
@keyframes floatShape {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-22px) rotate(12deg); }
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 1140px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 40px;
}

.hero-eyebrow {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(38px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--text-dark) 40%, var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 20px;
}

.hero-role {
  font-size: clamp(17px, 2vw, 22px);
  color: var(--text-muted);
  font-weight: 500;
  min-height: 32px;
  margin-bottom: 36px;
}
.hero-role .cursor {
  color: var(--primary);
  animation: blink 1s step-start infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  overflow: hidden;
  transition: var(--transition);
}
.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 18px 40px rgba(37,99,235,0.28); }

.btn-ghost {
  background: rgba(255,255,255,0.7);
  color: var(--text-dark);
  border: 1px solid var(--border-soft);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover { transform: translateY(-3px); border-color: var(--primary); color: var(--primary); }

.btn .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.5);
  transform: scale(0);
  animation: rippleAnim 0.6s ease-out;
  pointer-events: none;
}
@keyframes rippleAnim { to { transform: scale(3); opacity: 0; } }

.hero-image { position: relative; display: flex; justify-content: center; }
.hero-image-glow {
  position: absolute;
  width: 320px; height: 320px;
  background: var(--gradient-primary);
  filter: blur(60px);
  opacity: 0.35;
  border-radius: 50%;
  animation: pulseGlow 4s ease-in-out infinite;
}
@keyframes pulseGlow {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.1); opacity: 0.45; }
}

.hero-image-ring {
  position: relative;
  width: 280px; height: 280px;
  border-radius: 50%;
  padding: 8px;
  background: var(--gradient-primary);
  box-shadow: var(--shadow-lg);
}
.profile-img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 6px solid var(--bg);
}

.scroll-cue {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid var(--border-soft);
  border-radius: 20px;
  z-index: 1;
}
.scroll-cue span {
  position: absolute;
  top: 8px; left: 50%;
  width: 4px; height: 8px;
  background: var(--primary);
  border-radius: 4px;
  transform: translateX(-50%);
  animation: scrollCue 1.6s ease infinite;
}
@keyframes scrollCue {
  0% { opacity: 1; top: 8px; }
  100% { opacity: 0; top: 20px; }
}

/* =========================================================
   ABOUT SECTION
========================================================= */
.about-card {
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-sm);
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}
.about-kicker {
  font-family: var(--font-display);
  color: var(--primary);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 13px;
  margin-bottom: 16px;
}
.about-text {
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 28px;
}
.about-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}
.tag {
  background: var(--gradient-soft);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 999px;
}

/* =========================================================
   EDUCATION — TIMELINE
========================================================= */
.timeline { position: relative; max-width: 800px; margin: 0 auto; }
.timeline-line {
  position: absolute;
  left: 27px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(var(--primary), var(--accent));
  opacity: 0.25;
}
.timeline-item {
  position: relative;
  display: flex;
  gap: 24px;
  margin-bottom: 32px;
}
.timeline-dot {
  flex-shrink: 0;
  width: 56px; height: 56px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid var(--border-soft);
  z-index: 1;
}
.timeline-card {
  flex: 1;
  background: var(--card-light);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 28px 32px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.timeline-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(37,99,235,0.25);
}
.timeline-icon { font-size: 26px; margin-bottom: 10px; }
.timeline-card h3 { font-family: var(--font-display); font-size: 20px; margin-bottom: 4px; }
.timeline-sub { color: var(--primary); font-weight: 600; font-size: 14px; margin-bottom: 8px; }
.timeline-desc { color: var(--text-muted); font-size: 14.5px; }

/* =========================================================
   SKILLS SECTION
========================================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px 48px;
}
.skill-head {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  margin-bottom: 10px;
  font-size: 15px;
}
.skill-percent { color: var(--primary); }
.skill-track {
  width: 100%;
  height: 10px;
  background: var(--card-gray);
  border-radius: 999px;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: var(--gradient-primary);
  transition: width 1.4s cubic-bezier(0.22, 1, 0.36, 1);
}

/* =========================================================
   PROJECTS SECTION
========================================================= */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.project-card {
  position: relative;
  background: var(--card-light);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 32px;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}
.project-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
}
.project-glow {
  position: absolute;
  inset: -2px;
  border-radius: var(--radius-lg);
  padding: 2px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: var(--transition);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
.project-card:hover .project-glow { opacity: 1; }
.project-top { margin-bottom: 18px; }
.project-icon {
  font-size: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  background: var(--gradient-soft);
  border-radius: var(--radius-sm);
}
.project-card h3 { font-family: var(--font-display); font-size: 20px; margin-bottom: 10px; }
.project-card p { color: var(--text-muted); font-size: 14.5px; margin-bottom: 20px; }
.project-tech { display: flex; flex-wrap: wrap; gap: 8px; }
.project-tech span {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--primary-dark);
  background: var(--card-gray);
  padding: 6px 14px;
  border-radius: 999px;
}

/* =========================================================
   INTERESTS / HOBBIES — ICON GRID
========================================================= */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 20px;
}
.icon-card {
  background: var(--card-light);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 32px 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}
.icon-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-md);
  border-color: rgba(37,99,235,0.25);
}
.icon-emoji { font-size: 34px; display: block; margin-bottom: 14px; }
.icon-card p { font-weight: 600; font-size: 14.5px; color: var(--text-dark); }

/* =========================================================
   CURRENTLY LEARNING
========================================================= */
.learning-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.learning-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--card-light);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
.learning-check {
  flex-shrink: 0;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.learning-body { flex: 1; }
.learning-body p { font-weight: 600; margin-bottom: 10px; font-size: 14.5px; }
.learning-track {
  width: 100%;
  height: 6px;
  background: var(--card-gray);
  border-radius: 999px;
  overflow: hidden;
}
.learning-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 999px;
  transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

/* =========================================================
   RESUME SECTION
========================================================= */
.resume-card {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(14px);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  box-shadow: var(--shadow-sm);
}
.resume-icon {
  font-size: 48px;
  width: 88px; height: 88px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-soft);
  border-radius: 50%;
}
.resume-card h2 { font-family: var(--font-display); font-size: 26px; margin-bottom: 12px; }
.resume-card p { color: var(--text-muted); margin-bottom: 28px; }

/* =========================================================
   FOOTER
========================================================= */
.footer {
  text-align: center;
  padding: 40px 24px;
  border-top: 1px solid var(--border-soft);
  color: var(--text-muted);
  font-size: 14px;
}
.footer-sub { margin-top: 6px; font-size: 12.5px; opacity: 0.8; }

/* =========================================================
   BACK TO TOP
========================================================= */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  color: #fff;
  font-size: 18px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(20px);
  transition: var(--transition);
  z-index: 900;
}
.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}
.back-to-top:hover { transform: translateY(-4px); }

/* =========================================================
   SCROLL REVEAL ANIMATIONS
========================================================= */
.reveal-up {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-up.in-view { opacity: 1; transform: translateY(0); }
.reveal-up.delay-2 { transition-delay: 0.15s; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

/* =========================================================
   RESPONSIVE
========================================================= */
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-image { order: -1; margin-bottom: 20px; }
  .hero-image-ring { width: 220px; height: 220px; }
  .hero-image-glow { width: 260px; height: 260px; }
  .skills-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .learning-list { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .nav-links {
    position: fixed;
    top: 74px;
    right: 24px;
    left: 24px;
    flex-direction: column;
    background: rgba(248, 250, 252, 0.95);
    backdrop-filter: blur(16px);
    border-radius: var(--radius-md);
    padding: 16px;
    box-shadow: var(--shadow-lg);
    transform: translateY(-16px);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-link { text-align: center; }
  .nav-toggle { display: flex; }
}

@media (max-width: 600px) {
  :root { --section-pad: 80px; }
  .about-card, .resume-card { padding: 32px 24px; }
  .timeline-card { padding: 22px; }
  .icon-grid { grid-template-columns: repeat(2, 1fr); }
}